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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(*i $Id: mlutil.mli 6303 2004-11-16 12:37:40Z sacerdot $ i*)
open Util
open Names
open Term
open Libnames
open Miniml
(*s Utility functions over ML types with meta. *)
val reset_meta_count : unit -> unit
val new_meta : 'a -> ml_type
val type_subst : int -> ml_type -> ml_type -> ml_type
val type_subst_list : ml_type list -> ml_type -> ml_type
val type_subst_vect : ml_type array -> ml_type -> ml_type
val instantiation : ml_schema -> ml_type
val needs_magic : ml_type * ml_type -> bool
val put_magic_if : bool -> ml_ast -> ml_ast
val put_magic : ml_type * ml_type -> ml_ast -> ml_ast
(*s ML type environment. *)
module Mlenv : sig
type t
val empty : t
(* get the n-th more recently entered schema and instantiate it. *)
val get : t -> int -> ml_type
(* Adding a type in an environment, after generalizing free meta *)
val push_gen : t -> ml_type -> t
(* Adding a type with no [Tvar] *)
val push_type : t -> ml_type -> t
(* Adding a type with no [Tvar] nor [Tmeta] *)
val push_std_type : t -> ml_type -> t
end
(*s Utility functions over ML types without meta *)
val type_mem_kn : kernel_name -> ml_type -> bool
val type_maxvar : ml_type -> int
val type_decomp : ml_type -> ml_type list * ml_type
val type_recomp : ml_type list * ml_type -> ml_type
val var2var' : ml_type -> ml_type
type abbrev_map = global_reference -> ml_type option
val type_expand : abbrev_map -> ml_type -> ml_type
val type_eq : abbrev_map -> ml_type -> ml_type -> bool
val type_neq : abbrev_map -> ml_type -> ml_type -> bool
val type_to_sign : abbrev_map -> ml_type -> bool list
val type_expunge : abbrev_map -> ml_type -> ml_type
val case_expunge : bool list -> ml_ast -> identifier list * ml_ast
val term_expunge : bool list -> identifier list * ml_ast -> ml_ast
(*s Special identifiers. [dummy_name] is to be used for dead code
and will be printed as [_] in concrete (Caml) code. *)
val anonymous : identifier
val dummy_name : identifier
val id_of_name : name -> identifier
(*s [collect_lambda MLlam(id1,...MLlam(idn,t)...)] returns
the list [idn;...;id1] and the term [t]. *)
val collect_lams : ml_ast -> identifier list * ml_ast
val collect_n_lams : int -> ml_ast -> identifier list * ml_ast
val nb_lams : ml_ast -> int
val dummy_lams : ml_ast -> int -> ml_ast
val anonym_or_dummy_lams : ml_ast -> bool list -> ml_ast
val eta_args_sign : int -> bool list -> ml_ast list
(*s Utility functions over ML terms. *)
val ast_map : (ml_ast -> ml_ast) -> ml_ast -> ml_ast
val ast_map_lift : (int -> ml_ast -> ml_ast) -> int -> ml_ast -> ml_ast
val ast_iter : (ml_ast -> unit) -> ml_ast -> unit
val ast_occurs : int -> ml_ast -> bool
val ast_occurs_itvl : int -> int -> ml_ast -> bool
val ast_lift : int -> ml_ast -> ml_ast
val ast_pop : ml_ast -> ml_ast
val ast_subst : ml_ast -> ml_ast -> ml_ast
val ast_glob_subst : ml_ast Refmap.t -> ml_ast -> ml_ast
val normalize : ml_ast -> ml_ast
val optimize_fix : ml_ast -> ml_ast
val inline : global_reference -> ml_ast -> bool
|
